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DRV5055: DRV5055A3QDBZR vs DRV5055A3QDBZR

KORNELIS POORT
Prodigy 50 points
Part Number: DRV5055
Other Parts Discussed in Thread: DRV5056, DRV5057, DRV5053

Hello,

We currently use the DRV5055A3QDBZR in our design.  Unfortunately, global supplies are zero.  It appears that Mouser has some DRV5055Z3QDBZR. 

1. From the data sheet, it appears the only difference between the two is that there is temperature drift compensation on the A3 and not on the D3?

2. As I understand it the drift is .12%/degree celcius.  So, if our device is tuned at 25 degrees Celcius andbused in a temperature range of 0-50 degrees celcius, there is a +/- 3% (+/- 25x.12) drift for the Z3.Is this correct? 

3. Are there any other direct substitutes for the DRV5055A3QDBZR that you can recommend?

  • 0
    TI__Mastermind 26335 points

    Hello Kornelis,

    Thanks for considering to use Texas Instruments.

    1. Correct, only the temperature drift compensation is different.

    2. Sensitivity will drift 3% for Ax parts not Zx parts.  The compensation is included in the Ax parts to accommodate the drift you find in certain magnets.  -0.12%/C is the drift coefficient for Sintered NdFeB magnets.

    3. At the moment, it does not look like we have a direct substitute.  Our other linear analog output devices include the DRV5053 and DRV5056.  We also have a pwm output DRV5057 that you could put an RC filter on to create an analog output.